{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca03edc7caf2482719b3cbd13f755b55a1eff085f2e9327831e02b8f6e7bf1b7",
    "signature": "0x80ca8bf34e0792e03010125df4c4f0be7f22b6d14da96475af26fdf593df00265b04fc4670bd85a58af71314532e022f008223e0c56f517e1c3d59a481e9fb6e1c",
    "signer": "0x6c59ca961df2CA40C1cE46d17F3E89c392340788",
    "userId": "588779055"
  }
}